Electric window-closing device.



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EL-Et; m wiNDow CLOSING DEVICE. {APPLCM'ION man APR,23.1915. 1,172,409,Patented Feb. 22,1916.

2 sHEsTssHEET 1.

W. B. UFFERT.

LECTRiC WiNDOW CLOSING DEVICE. APPLmAHoN min Win23, w15.

17,172,409, mum Feb. 22,1916.

i SHEETS-SHEET 2` UNTTED STATES PATENT OFFICE.

WALTER B. UFFERT, 0F HEMPSTEAD, NEW YORK.

ELECTRIC WINDOW-CLGSING DEVICE.

To all whom t may concer/n Be it known that I, VALTER B. Urreii'r, a

citizen of the United States. residing at Hempstead, in the county ofNassau and State of New'York, have invented certain new and usefulImprovements in Electric WindoWClosing Devices; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertainsto make and use the same.

The invention relates to an electric window closing device.

The object of the present invention is to provide a simple, practical,and comparatively inexpensive window closing device adapted to beoperated at one point by a switch and capable of simultaneously closingthe upper and lower sashes of all of the windows of a building therebyenabling a building to be instantly protected by the closing pf-itswindows in event of a storm and obviating the necessity -of hurriedlyclosing them by hand.

With these and other objects in view the invention consists in theconstruction and novel combination and arrangement of parts hereinafterfully described, illustrated in the accompanying drawings and pointedout in the claims hereto appended, it being'understood that variouschanges in the form, proportion and minor details of construction may beresorted to without Vdeparting from the spirit or sacrificing any of theadvan-` tages of the invention. i i

ln the drawings Figure 1 is a front elevation partly in section of awindow provided 'withran electric window closing device constructed inaccordance withl this invention, Fig. 2.is a side elevation of the same,the top plates being omitted to show struction more clearly, Fig. 3 is aplan view of the window closing device, Fig. 4 is an enlargeddetail viewot one ofthe pulleys illustrating the arrangement of thel ratchet andsprocket teeth, Fig. 5 is a vertical sectional view of the window trameillustrating the arrangement of springs, Fig. 6 is a detail perspectiveview of 'the top plate .for the pinley casing, Fig` 7 is a detail viewof a portion of the double pawl,

Like numerals of reference designate corresponding parts in all of thefigures of the drawings. l

ln the accompanying drawings inwhich is illustrated the lpreferredembodiment of the Specication of Letters Patent. Patented Feb. 22 1916Appiication filed April a3, 1915.

serial No. 23,461.

invention, 1 and 2 designate upper and lower sashes slidably mounted ina window frame or casing 3 and connect/edby bhaiiis'l and 5 withcounterbala cing weights G and 7. The sprocket chains 4 \nd' 5 pass'over upper pulleys 8 and 9 having sprocket teeth 10 and 11 also providedwith reversely arranged ratchet teeth 12 and 13. Then-'eight 6 of theupper sash is suliciently heavy to raise the said upper sash to itsclosed position when the said sash is free to move and the weight 7 isslightly less than the weight of the lower sash which will closeautomatically when it is free to move.

The pulleys or rotary elements 8 and 9 are mounted in casings 14 whichare open at the top to enable the chains to be readily placed on andremoved from the pulleys or rotary elements. T he casings arecomposed ofspaced sides and a connecting bott-onil portion and they are providedatv bottom.- and at the upper. ends of their sides withv ears orattaching portions 15 and 16l for ther..

reception of screw or other suitable'fa's'tening devices for securingthem to the window mounted intermediate of their ends ends with upwardlyand downward-ly pro jecting tooth 24 engages the vratchet teeth 12 whichare shouldered to prevent the outer portion or side of tliepu-lley orrotary mem- Abei" from mov-ing downwardly and permitting the weight 6 toraise the upper sash to its closed position. The downwardly projectingtooth 25 of the side oi' member '21 engages the ratchet teeth 13 of theother piil- 1 le)l or rotary member 9 which has its teeth shouldered toprevent the outer side or poi'- tion of the rotary member or pulleyfrom, moving upwardly and permitting the lower sash to close.

The -chains and the sprocket teeth prevent heavy sashes from slippingover the pulleys;

ets 23 and they are providedA at their lowerfgs the cion-W" jectingteeth 24 and'Q. The upwardly pro- I acores 29 extend into solenoidmagnetic coils platejl which is provided at one end with anlupiv'vardlyextending fiange or portion 32.

--. plate 31 is also provided at thev 'other d. with upwardly projectingarms 33 vkliic connected by a transverse rod 34.

VThe magnetic? solenoid coilsare arranged in circuit with the-coils ofthe windowclosiug devices of the various other windows of a house orbuilding and when the circuit 1s energized the cores are drawn inwardlyintothe coils thereby swinging the upper portion of the double pawlinwardly and withdraw! ing the lower portions and the teeth carriedthereby from engagementwith the ratchet teeth of the pulleys .or rotaryelements.

This permits the upper'and lower sashes to close automatically bygravity. The double ratchet pawl is normally maintained in engagementwith the ratchet teeth of the pulleys or rotary elements by means of acoiled spring 35 secured `at one end to the transverse md S and'connected at its other end Vto the transverse plate 28.. When the coilsare energized and the slidable cores are drawn inwardly, theV spring 351s placed under tension and is adapted to withdraw thecores from thecoils when the circuit is denergized.

l'In order to enable the upper and lower sashes to slide freely withoutbinding the window frame or casing is equippedat the opposite side tothat at which the pulleys are mounted with upper and lower springs 36and 37 each secured at one end and having its other end free. Thesprings 36 and 37 which are bowed yieldably engage the sashes andprevent the same from binding.

While the window closing device is shown applied at one side ofthewindow only m the drawing, it may if desired be arranged at each sideof a window especially where extremely large sashes are to be raised andlowered.

What is claimed is l. In a window closing device of the class describedthe combination with upper and lower sashes, rotary elements provided.with rever ely arranged ratchet teeth, weights, fiexi le connectionsarranged on the rotary elements and connected with the weights and withthe sashes, the latter being automatically closable by gravity when freeto move,

a double pawl provided with reversely arranged teeth engaging theratchet! teeth of the rotary elements and means for.; operating the pawlto release the sashes.

2. In a window closing device of the-class described, the combinationwith upper and lower sliding sashes, rotary elements provided withratchet teeth, separate flexible connections arranged on the rotaryelements and' connected with thesaid sashes and provided withindependent weights, the weight of the upper sash being heavier than thelat ter and the lower sash being heavier than its weight whereby thesashes are automatically movable to their closed position by gravity,means for engaging the ratchet teeth for holding the sashesin an openposition and electrically controlled means for releasing y open positionand an electromagnet connected with the said pivoted members for.withdrawing the 'same from engagement with the ratchet teeth to permitthe sashes to close.

, 4. In a window closing device of the class described the combinationwith upper and lower sashes, rotary elements provided with ratchetteeth, flexible connections arranged on the rotary elementsand connectedwith the sashes and provided with weights, said sashes beingautomatically movable by gravity to their closed position, a pawlprovided with means for engaging the ratchet teeth for holding thesashes in an open position, and a solenoid having a core connected withthe pawl for withdrawing thesame from engagement with the ratchet teeth.I

5. In a window closing device of the class described the combina-tion ofa window frame, and upper and lower sashes, rotary elements mounted onthe window frame and provided with ratchet teeth, ilexible connectionsarranged on the rotary members and connected with the sashes andprovided with weights, a double pawl composed of spaced sides pivotallymounted on the frame at one side thereof and provided with means forengaging the ratchet teeth, said pawl being also provided with a stemextending above the top of the window frame, solenoid coils arrangedupon the window frame or casing and provided with slidable cores, aplate connecting the cores, a rod extending from the plate to the saidstern, and a spring connectwhen the solenoids are denerg-zed.

6. .In a window closing device of the class described the combination ofa window frame, and upper and lower sashes, rotary elements mounted onthe window rameand provided with ratchet teeth, iiexible connectionsarranged on the rotary members and connected with the sashes andprovided with Weights, a double pawl composed oiispaced sidespivotally-mounted on the frame: at one side thereof and provided withmeans for erli'gaging the ratchet teeth, said pawl'being a so the top ofthe windowfram'e, a plate mountprovided with a stem extending above f edupon the top of the window frame and provided with upwardly extendingarms, a transverse rod connectin the arms, solenoid coils mounted on thep ate in rear of the saidjrod, cores operating in the coils, atransverse plate connecting the cores, a rod connecting the plate withthe stem of the pawl and a spring connecting the transverse rod with thelate for withdrawing the cores.

In testimony whereof I aiiix my signature 25 in presence of twowitnesses.

WALTER B. UFFERT.

Witnesses:

JAS. VAN NosTRAND, CHARLES H. ZIEGLER.

